Electric push-switch.



E. ANDERSON.

ELECTRIC-PUSH SWITCH.

APPLIGAVTION FILED 1320.21, 1 911.

1,030,860. l Patented July 2, 1912.

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` ERIC ANDEEsoN,l or E EIDGEPCET, CCNNECTICUT,` AssIGNoE To TI-IE PERKINS ELEC-3 TEIC SWITCH COMPANY, E BEIDGEPCET, CONNECTICUT, A CORPORATION orY `CCN- ELECTRIC enen-SWITCH.

. l A speeieation off -Letters Patent.

,:Applicationfiled December 1911. Serial 11o. 667,133.

.'Ld all whom 'it may concern:

Be it known that I, ERIC ANDERSON, a' citizen of the United States of America, and residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented'certain new and Improved Electric -Bush-Switches, of which the following is `a,spec0aton I y I 1 My present invention relates to electric l push switches and 'particularly to the type thereof `commonly known as ,door switches, the aff-)my invention,- being .t0 provid@ angimproyed actuating mechanism for a` .'swfiteh i f 'this character. In the accompanying'draw-ings, Figure 1 is a longitudinal elevation of my improved switch, one side of the casing being removed and showing the switch mechanism in one yposition; Fig. 2 is a plan View with the face ZO-plate removed; Fig. 3 isaside elevation of the switch mechanism alone and in a different p CsiQiQLrfrQnTtha-t shown in iFig 1; Fig. 4 is a side elevationjo the switch mech: anism in the position shownljinlig. 1, but

from the opposite side thereof; Fig. 5 is a verticalsection'onthe li-ne 5-'5, Fig. 3; and Fig: fis :af-perspective of the rock bar drawn to an enlarged scale. The switch illustrated comprises a switch -boX 10 of insulating material, with metalI cover plate 11, through which' the push but-v Yton r1 2v projects. Within the switch cha-m berflv a1 -wallyf14 of insulating material is lv arranged to form a barrler between the switch termina-ls, symmetrically 'arranged on each .'-side thereof,A only one, 15, being shown'inullig. 1. These terminals are'prefera-bly ,'carried by standards 16 arranged ad-` jacent. the' ure apertures 17, throughjvhich 40 the circuit" Wires are led tothe binding screwslS. .I y

Extending between the'cover plate 11 I'and the base of the boX 1() and secured thereto; I .arrange an upright' frame'19 onwhich the switch mechanism--isjpivoted This mechav .nismfcomprises' a'rockefr bar 2O 'pivoted at 21 (Figi 6) onth'e spindle 22,' which'passes through and is supported in the standard 1 9. l As will bemore clearly' noted from Fig.

6, the rocker bar '20, in the form shown,`

comprises a blank ofsheet metal folded back upon,itselninU-orm 'Wlth e 1,11gn23,

iprojectingat right. angles from one arm thereof... This rocker. bar embraces the standard and 1s supported by the pivot pin vthe push button 12 is lpivoted on a pin 24 -vv`passing through the peiforations 25 (Fig. One arm of the rocker bar carries the ,lluglj23wl1i'chis straddled by the extended ends 26,'"27, -of the switch spring 2S coiledl .upon the pivot pin 22. The other arm of the rocker bar is expanded into a fanat 3Q and 31- to form cams,A the'` utility of' which .will be hereinafter described.v i

'jffhe switch'blades 32 are'carridupon la jplvoted-arm 33 s wveling-'uponbthe pivot `-in assembled position is straddled byv Athe ends -of the' spring 2S in like manner as :the Alug 23 ot 'the rocker bar. The. extent of Aoscillation ofthe 'switch 'arm is limited by the shoulders'' and 36 formed in the stand- Alugs a and ZJ impinge; assembled osition the switch 'arni lies betweenth s andard 19.and the-branch' of the ickii-bar vwhich;carries the spring engaginglilg', and therespectiveflilgs l'23 and 34 are spaced radially different distances from .the Center Aof'oscillation on the pivot pin-22,.;so4 that `they are free to pass each other. f Determ-engaging holes. 37 re punclledfin. r the switch arm to cooperate with thetransverse laterally movable detent'pin .'38 car- "the topfandbottom flanges of the standard '19'. This detent pin is provided with a 7shoulder 40,-Fig. `5, between Which and the mpright 39 is arranged a lspring 41-which ,tends to press the pin through, slot 29 in the rocker bar and .the guide hole 42 in the .the other ofthe holes 37 in the sfwt'liliim.

portion 'of the tarif-shaped .arm of the rock lever 20, and in' the out positioor' the right 39 against the action of the spring-41 andthe switch-arm engaging end of the ,detent is moved out et the hole 37 so thatthe V:switch armissubjected to the unrestrained ard 19 against. which the/overturnedstop':

standard'and into enga'gement withbne rne5 f lhe shoulder 4() beaiswagainst the camnield f Patented July 2,191.2?il

22 thereon. y At one end of the rocker bar shaped end which is'slpt'ted at 29 and 'oset A 'pin 221 A lug 34,i`s struck up from-this arm tried., by the. upright 39 extendingA between bottom 1 2, -thepinis'fpressed toward the up-TJ.

-,act`ion'of the spring 28'. Upon the initiation 0IF the inward movement of the button 12,

the ca mg 30" .;passes lroni'beifieath the'shoulder 40 the *defeat pin "as, and the iaeter is pressed by its spring 41 into one of the holes 3"?o$7 the i switch 4Farin landv holds the latter against-'mo'venetduring the depression of ton 40 to force the pin 38 outf engager ment with the switch arm, whereupon the lattensnaps inte the ,off position under the influence o :h-tliespring" j Ihereturn of; thezswitch to the t on positionv is secured bygmeans of spring 43, which is more vpoirveriiilthan the spring 28 and whichis arranged on the opposite end of .thepivot pin 22,0 n e end of the spring .llieng'agesthe rockjbar-ZQ adjacent the button,l2, andgthe tlienl end is engaged Vbeneathsthebpttom Haegen@ 0f the Standard 159.3111,4 the expanded `-positionv of the spring, thebi'ttonf 12. fis; ,in the out position. :Theoperationottheswitch is readily un-v derstoods., 1In.its normal position, when installed, in, .'-adooi.-sillwitl'izthe door closed, the,butto1i 1g2;s depressedby the door stile and the switchisoiil ,As the door is opened,

the spring ,43 Voperateslfto throw the switch into the-.position illustrated in Fig. A1, with the .siap' action explained. As the door :is closedzagain', the circuit is `broken with a snap;2 action. byfthegdepi'ession of the button 12 in.1ike.nianne1i-; w .elfclimS-fmyznveetill- A Inga snapswitch,.V a1 frame l member, and as'witch arm pivoted. on, one sidel thereof, a

laterallyf'movable detentpin passing through :saidframe member', and engaging ,the switch armyyin .combination Vlwith an actuating spring, ,a 'springtensioning lever. p ivoted' adjacent theswitch,;arm,-a cani pivoted on the..opposi te -vside' of-tlie frame 'and means, in connection: w-'iththe latter to free. said detent- -afterlthegspringthasbeen.pnt under tension. .ff/.2951er agpshsbntton switc h a frame mem` ber,. af` frockerjfbar,l comprising a spring tent Isionig'ng armand; frame member .andfgpivotedfthei'eon, a switch arm" acent .fsaidesprin'g tensioning arm lon ciieiside of theira-me member, an actuating springfandadetent pin arranged on the other side off saidfframeand passing therel throughf'- to engagei` the switch arm, and

'meansrin connection with said cam arm .tor p 4freeingj the detentspinjafter thespring has been'fpiitnnder tension. j

f; alnlavpush switch, a 'frame and a pivot pinginountedttherein-,a.return spring on one endsozf lsaid pivot A pin, anda' switch spring onf the; oppsite endl of said pin, in combinaf tion vithla switcharm andav spring tensioni `in'gi'leveivo'n 'one' 4sideA of :ftheframa and a detent pin and pivoted cam on the other side nani, VVstraddl'ing said l' of said frame, said pin piercing the frame and :engaging the switcharm, in combination with -means in `connection with -said cam arm for freeing said detent pin.

4.- In a push switch,'a U-shaped rocker bar havingv one arm oiset at its re'eend tO'orin a switch spring' engaging lug, and the other arm cammed to coperate with a detent, substantially as described.

5. In a rpush switch, a frame membeig-a' U-shaped .rocker bar straddling the same, and pivoted thereon, a switch arm engaged between one arm of said rocker bar on the frame and pivoted on the latter, in combina-v tion with an upright on the opposite side of the frame, a detent pin supported therein, a shoulder on said pin and a spring interposed between said shoulder' and upright, tending to press said pin into engagement with the switch arm, one arm of the rock lever being cammed to force said detent pin out ofen#` gagement with the switch lever vin predeterspring engaging lug, substantially as 'de' l scri ed.

7. vIn a vpush switch, a rame member, `a switch arm pivoted thereon, a U-shaped rock' lever mounted on said pivot and straddling the frame and confining the switch lever between one of said arms and the frame, thev other arm of said rock lever being cammed irl-'combination with a detent pin passing. through said frame to engage the switchA lever, a spring. tending to pressxsaid detent y pin into engagement with said switch lever and means in connection with Ysaid cam arm of the rock bar for freeing said detent.

8. In 'a 'push switch a standard, a cam: plate on one side thereof and a switch leveron the opposite side thereof, a laterally movable. detent pin piercing saidv standard and cam plate, and means inlc'onnect'ionwith the latter for moving said'pin 'out oi engagement with the switch lever.

9. In a" pushswitch, a standard, with top and bottom securing flanges, an upright' ex' tending between the latter, a detent pin 'piercing'. said upright and standard, a. cani varm arranged between vthe latter for moving said pin and a switch lever on the opposite sideof. said standard engaged by the'detent in.. 10. In a push switch,`a standard with top and bottom securing anges, .an upright extending between theg latter, a detent pin piercing s aid I iprightV and standard, a shoulder on said pm, a spring arranged on said pin between said upright and shoulder'and `tending to press said pin through the stand ard,` a cam arm interposed between said standard and shoulder and bearing against stantially as described.

l1. In a push switch, a standard, a rocker bar embracing the standard and pvoted the.eon, a switch lever, a transverse detent, a cam on the rocker bar to actuate said detent, and a spring to act on the switch lever 10 andto be tensioned by the rocker bar. 1 In testimony whereof I have signedmy name to this specifica-tion, in the presence of tWo subscribingv Witnesses.

ERIC ANDERSON.

Nitnessesz G. W. GOODRIDGE, GEORGE B. THOMAS.

Copies of this patentmay be obtained for ve cents each, by addressing the "Oomlnlssioner of Patents,

' Washington, D. G. 

